echo -e "\n" | ssh-keygen -t rsa
sudo yum remove docker \
	docker-client \
	docker-client-latest \
	docker-common \
	docker-latest \
	docker-latest-logrotate \
	docker-logrotate \
	docker-engine
sudo yum instll -y yum-utils
sudo yum-config-manager \
	--add-repo \
	http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
sudo yum makecache fast
echo "y" | sudo yum install docker-ce
echo "y" | sudo yum install docker-ce-cli
echo "y" | sudo yum install containerd.io
sudo systemctl start docker
